libstdc++
initializer_list
1 // std::initializer_list support -*- C++ -*-
2 
3 // Copyright (C) 2008, 2009 Free Software Foundation, Inc.
4 //
5 // This file is part of GCC.
6 //
7 // GCC is free software; you can redistribute it and/or modify
8 // it under the terms of the GNU General Public License as published by
9 // the Free Software Foundation; either version 3, or (at your option)
10 // any later version.
11 //
12 // GCC is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
16 //
17 // Under Section 7 of GPL version 3, you are granted additional
18 // permissions described in the GCC Runtime Library Exception, version
19 // 3.1, as published by the Free Software Foundation.
20 
21 // You should have received a copy of the GNU General Public License and
22 // a copy of the GCC Runtime Library Exception along with this program;
23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24 // <http://www.gnu.org/licenses/>.
25 
26 /** @file initializer_list
27  * This is a Standard C++ Library header.
28  */
29 
30 #ifndef __CXX_INITIALIZER_LIST
31 #define __CXX_INITIALIZER_LIST
32 
33 #ifdef __GXX_EXPERIMENTAL_CXX0X__
34 
35 #pragma GCC visibility push(default)
36 
37 #include <cstddef>
38 
39 namespace std
40 {
41  /// initializer_list
42  template<class _E>
43  class initializer_list
44  {
45  const _E* __array;
46  size_t __len;
47 
48  // The compiler can call a private constructor.
49  initializer_list(const _E* __a, size_t __l)
50  : __array(__a), __len(__l) { }
51 
52  public:
53  initializer_list()
54  : __array(NULL), __len(0) { }
55 
56  // Number of elements.
57  size_t size() const
58  { return __len; }
59 
60  // First element.
61  const _E* begin() const
62  { return __array; }
63 
64  // One past the last element.
65  const _E* end() const
66  { return begin() + size(); }
67  };
68 }
69 
70 #pragma GCC visibility pop
71 #endif // C++0x
72 #endif // __CXX_INITIALIZER_LIST